As he was transferred from a prison in America to trial in London for the crimes he committed, the evil wizard Gellert Grindelwald manages to escape by being helped by a trusted man within the organization that held him captive. Three months later, in London, Newt is trying to recover his right to free travel after losing him because of tangles that happened in New York. He is announced that he will be allowed to do this if he is to help find Credence Barebone, the last of a long generation of pure blood wizards.